OPA561PWP/2KG4

Instrumentation, Op Amps, Buffer Amps Overview

The OPA561PWP/2KG4 is a high-current, high-speed operational amplifier manufactured by Texas Instruments. It delivers up to 1.2A output current and supports a supply voltage range of +7V to +15V (single) or ±3.5V to ±7.5V (dual). Key electrical parameters include a 17MHz gain-bandwidth product, 50V/µs slew rate, and 1MHz full-power bandwidth. The device features adjustable current limiting from 0.2A to 1.2A, thermal shutdown protection, and an enable/status control pin. It operates within an extended industrial temperature range of -40°C to +125°C and is housed in a thermally enhanced HTSSOP-20 PowerPAD package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Capable of driving high currents up to 1.2A into reactive loads with excellent linearity.
• Features fully protected operation including thermal shutdown and user-adjustable current limiting.
• Includes an Enable/Status pin for output disable control and thermal status monitoring.
• Utilizes a thermally enhanced HTSSOP-20 PowerPAD package for efficient heat dissipation.

Instrumentation, Op Amps, Buffer Amps Applications

• Power-line communications
• Valve actuator drivers
• Laser diode drivers
• Thermo-electric cooler (TEC) drivers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'G4' against the manufacturer's latest documentation to confirm compliance details and availability status. Ensure the HTSSOP-20 PowerPAD package requirements are met during PCB design, particularly regarding thermal via placement and soldering procedures. Confirm that the component meets all environmental and safety standards required for the intended application before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high output current capability combined with high-speed performance is required. It is suitable for applications needing adjustable current limiting and integrated thermal protection. Consider the single-supply or dual-supply flexibility and the extended temperature range. Ensure the PCB layout supports the thermal requirements of the PowerPAD package for reliable long-term operation under maximum load conditions.

Instrumentation, Op Amps, Buffer Amps Part Context

The OPA561 is part of Texas Instruments' portfolio of power operational amplifiers designed for demanding line-carrier communications and motor control applications. It offers a low-cost solution for driving reactive loads while maintaining high reliability. The device integrates advanced protection features and precise current control, making it distinct from standard general-purpose op-amps in its ability to handle significant pulsed currents.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult the manufacturer's datasheet for officially confirmed substitute part numbers. Verify pin compatibility, electrical specifications, and thermal performance before replacing the component. Ensure any alternative device meets the same package and functional requirements.